CN101889454A - Color adjustment circuit - Google Patents

Abstract

The fact that B is close to a U axis and R is close to a V axis is noted and an example of a color adjustment parameter following the direction of each color is shown. If V of input is in the range of negative, the influence degree of the B is found out to be small and thus the B component is omitted from computation in order to reduce the amount of the computation. Similarly, when a component having a small influence degree is omitted if the B is in the range of positive, U is in the range of positive, and the U is in the range of negative, adjustment parameters AR, AG, and AB of the directions shown in figure can be defined. If the V of the input is in the range of positive, the V component can be adjusted by multiplying the V of the input by the AR. When considering that the cases where the V of the input is in the range of negative, the U is in the range of positive, and the U is in the range of negative are similarly processed, a color transformation processing for adjusting the shading of color can be performed so as to bring the values of the UV close to the direction of a color component to be intensified independently of brightness by setting the value of each adjustment parameter of RGB larger than 1 or setting it smaller than 1. This makes it possible to alleviate the burden on the processing in the color transformation.

Description

Color adjustment circuit

Technical field

The present invention relates to color adjustment circuit and relate to the electronic installation that uses this color adjustment circuit.

Background technology

In recent years, the feasible for example portable electron device such as portable terminal can carry out the colour demonstration with more and more higher definition.Thereby utilizing portable terminal to make becomes possibility to watching of various contents.

Various color adjustment technology have been proposed routinely.For example, in the technology of describing in the patent document 1 below,, any selected tone proofreaies and correct the degree of freedom that improves the tone matrix correction by being carried out independently.According to this technology, the monochrome of skew is corrected into the correct UV value that this color should have, and thereby can obtain comprehensive color reprodubility.

The clear 61-19292 communique of [patent document 1] Japanese Patent Application Laid-Open: Hue MatrixCorrection Circuit

Summary of the invention

Invent problem to be solved

Yet in the technology of describing in the superincumbent patent document 1, shown in Figure 8 as patent document carried out on Cr (R-Y) direction and proofreaied and correct so that proofread and correct yellow skew, and carry out on Cr (R-Y) direction and proofread and correct so that proofread and correct blue skew.In other words, in this technology, colour correction relates generally to the correction of tone, and proofreaies and correct color offset by correctly setting a plurality of constants.Another problem of this technology is owing to relate to a plurality of constants, do not know to all corresponding what values of constants setting and by the corresponding relation between which kind of color of correction acquisition.

The purpose of this invention is to provide a kind of technology that allows easier color adjustment.

The means that are used to deal with problems

Color adjustment technology of the present invention relates generally to is not the correction of the darkness grade of the correction of tone but color.In other words, purpose is not the correction skew but on purpose is offset color.

And the present invention proofreaies and correct the darkness grade of color, so the orientation of object color component is different with orientation in the routine techniques.In the present invention, conversion at color and parameter between have man-to-man relation.

In addition, can set each darkness grade so that with the increase of parameter/reduce and increase/reduce.

According to an aspect of the present invention, a kind of color adjustment device that is used at and Color plane adjusted color that do not comprise brightness definition by two mutually orthogonal axles (being called as X-axis and Y-axis hereinafter) is provided, this color adjustment device characteristic is to comprise color modulator, this color modulator only on one of direction of X-axis and Y-axis among the color RGBCMYe any carries out color adjustment at least.

Above device for example by using value of chromatism to carry out conversion no matter brightness how.Can regulate the color that brightness is not had influence specially.Notice that the present invention can be applied to the space except yuv space, and can be applied to for example YCbCr, YPbPr, YIQ, L ^*u ^*V, L ^*a ^*The color space of b or the like.

And, when the adjusted R of UV plane, only use the value of V to regulate R.This allows to regulate with the amount of calculation that reduces the intensity of expection color.Note, in RGBCMYe, this also similarly the mode of thinking be applied to BCYe (only using the value of U or V to regulate).

Preferably, this color modulator is designated as the color definition color adjustment parameter of the intensity on the specific direction that has on the XY plane for each and regulates by using the color adjustment parameter to carry out colouring intensity.Preferably, the data of this color modulator by using the color adjustment parameter to come conversion X and Y.Preferably, when comprising a plurality of color, this color modulator is carried out color adjustment by getting rid of the color component that has minor impact on X-axis and Y-axis.For example, by ignoring the component that on the V axle, has minor impact (Ye: yellow) (ignore the Ye that in the middle of RMYe, has minimum relatively influence) and carry out and only use that R and M's is color transformed.Thereby, can realize adjusting with the amount of calculation that reduces to the expection color.Preferably, in the color adjustment parameter any is defined as parallel with any direction at least of X-axis and Y-axis at least.

Preferably, in the color adjustment parameter any is defined as direction with respect to X-axis and has any angle in 45 °, 135 °, 225 ° and 315 ° at least.Preferably, when when using the color adjustment parameter to come the data of conversion X and Y, color modulator just is respectively according to the data of X and Y or bears and switch the color adjustment parameter.In addition, the color adjustment device is characterised in that, the versicolor direction that is used for the color adjustment on the XY plane be along X-axis and Y-axis at least any.For example, have intensity on the specific direction in the yuv space and just be or bear and switch these parameters, come conversion chromatism data UV corresponding to the parameter of specifying color and according to the UV value by being defined in.Parameter is corresponding one to one with color, therefore can only change by increasing or reducing parameter corresponding to the colouring intensity of specifying color.This allows to be easy to the user and sets and soft control.

The color adjustment device is characterised in that, color modulator according to the input and output characteristic regulate conversion at color so that the rate of change of its output valve is big more in the big more then data after color transformed of the input value of color.In addition, the color adjustment device is characterised in that, in the data after color transformed, color modulator according to the input and output characteristic regulate conversion institute at color so that when the increase conversion at the intensity of color the time reduce or do not change except conversion at color the intensity of output valve of color; And make when reduce conversion at the intensity of color the time increase or do not change except conversion at color the intensity of output valve of color.For example, when the situation of the conversion target in the middle of the color that is set to RGB at R is divided into fixation caidiao opera joint parameter and carried out conversion when increasing colouring intensity (value increase) by the color adjustment parameter that use sets, each the transformation results that is not the G of conversion target and B shows intensity reduction (reducing) or does not have Strength Changes, and does not show intensity and increase (value increase).And, the color adjustment device is characterised in that, when for change conversion at color and when setting the color adjustment parameter, color modulator so that on the XY plane except conversion at color color variable quantity less than conversion at the mode of variable quantity of color regulate this color.Thereby, can increase the degree that color changed (degree that color changed that can reduce not to be transformed) that will be transformed.For example, when the close redness of data, red being emphasized.Thereby, carry out conversion so that " making blush become redness " and so that " causing non-erythroid very little variation ".

When the identical value of each setting in the color adjustment parameter that is each color, color modulator also can be so that the mode that the variable quantity of the output valve after color transformed is equal to each other be carried out adjusting.Above-mentioned color adjustment device is provided in addition, it is characterized in that comprising: register, it is stored in the color adjustment parameter wherein; Selector is selected between the color adjustment parameter; And multiplier, it multiply by the selected color adjustment parameter of selector the input value of X and Y.

The present invention can be portable terminal or display unit, and its characteristic is to comprise video signal preprocessor, and this video signal preprocessor comprises any of above-mentioned color adjustment device.In addition, the present invention can be a portable terminal, and its characteristic is to comprise that preservation is by the video signal preprocessor process memory of data that conversion obtained; And its characteristic is that this memory is preserved by the set point of color adjustment device through the color adjustment parameter of the data that conversion obtained and the connection that is relative to each other.The present invention can be a portable terminal, and its characteristic is to comprise and can sends and/or receive by the color adjustment device process data that conversion obtained and the external connection terminal and the radio communication device of color adjustment parameter.

Preferably, described portable terminal comprises the user interface of the set point that can change the color adjustment parameter.The present invention can be a kind of system, by this system, allows to be sent out and/or to receive between a plurality of portable terminals by the color adjustment device process data that conversion obtained and the set point of color adjustment parameter.

System can be configured to: when the set point of color adjustment parameter can be assigned to content, can carry out color adjustment in conjunction with this reproduction of content based on set point.

According to an aspect of the present invention, a kind of color conditioning method that is used for carrying out on definition and the Color plane that do not comprise brightness at mutually orthogonal by two axle (being called as X-axis and Y-axis hereinafter) color adjustment is provided, this color conditioning method be characterised in that only comprise on one of direction of X-axis and Y-axis among the color RGBCMYe any carries out the step of color adjustment at least, this step comprises: for being designated as the color definition color adjustment parameter that has intensity on the specific direction on the XY plane; And by using the color adjustment parameter to carry out the colouring intensity adjusting.

The present invention can be a kind of program that makes computer carry out above-mentioned steps.The present invention can be a kind of computer-readable recording medium that writes down described program therein.Notice that this program can be obtained by transmission medium.

The invention effect

The present invention allows the easy adjusting of colouring intensity.This thus allow to reduce the load of the color transformed processing of the demonstration that is used for portable terminal etc.

Description of drawings

Fig. 1 is the diagram that the distribution of the primary colors on the UV plane is shown.

Fig. 2 is the diagram of example that the adjusting parameter of primary colors is shown.

Fig. 3 is the diagram that the distribution of primary colors on the UV plane and complementary color is shown.

Fig. 4 is the diagram of example that the adjusting parameter of primary colors and complementary color is shown.

Fig. 5 illustrates the diagram of how handling the example of conversion color by colouring intensity.

Fig. 6 is the diagram that the example of the conversion that is obtained when reducing the influencing of the color the color that will be increased or reduce except intensity is shown.

Fig. 7 is the diagram that the I/O characteristic is shown, and it illustrates by increasing and reduce the versicolor example that the intensity of monochromatic R obtains.

Fig. 8 is the diagram that the I/O characteristic is shown, and it illustrates by increasing and reduce the versicolor example that the intensity of monochromatic G obtains.

Fig. 9 is the diagram that the I/O characteristic is shown, and it illustrates by increasing and reduce the versicolor example that the intensity of monochromatic B obtains.

Figure 10 is the diagram that the I/O characteristic is shown, and it illustrates the versicolor example that obtains by the intensity that increases polyenergetic R.

Figure 11 is the diagram that the I/O characteristic is shown, and it illustrates the versicolor example that obtains by the intensity that reduces polyenergetic R.

Figure 12 is the diagram that the I/O characteristic is shown, and it illustrates the versicolor example that obtains by the intensity that increases polyenergetic R.

Figure 13 is the diagram that the I/O characteristic is shown, and it illustrates the versicolor example that obtains by the intensity that reduces polyenergetic R.

Figure 14 is the diagram that the I/O characteristic is shown, and it illustrates the versicolor example that obtains by the intensity that increases polyenergetic G.

Figure 15 is the diagram that the I/O characteristic is shown, and it illustrates the versicolor example that obtains by the intensity that reduces polyenergetic G.

Figure 16 is the diagram that the I/O characteristic is shown, and it illustrates the versicolor example that obtains by the intensity that increases polyenergetic B.

Figure 17 is the diagram that the I/O characteristic is shown, and it illustrates the versicolor example that obtains by the intensity that reduces polyenergetic B.

Figure 18 illustrates the diagram of use according to the ios dhcp sample configuration IOS DHCP of the display unit of the color adjustment technology of arbitrary embodiment of the invention.

Figure 19 illustrates the diagram of use according to the ios dhcp sample configuration IOS DHCP of the portable terminal of the color adjustment technology of arbitrary embodiment of the invention.

Figure 20 is the diagram that illustrates according to the ios dhcp sample configuration IOS DHCP of the outward appearance of the portable terminal of arbitrary embodiment of the invention.

Figure 21 is first diagram of using the processing example in the sight that illustrates that the colour of portable terminal shows.

Figure 22 illustrates the diagram of ios dhcp sample configuration IOS DHCP of coming to carry out for a plurality of portable terminals the system of color adjustment according to the color adjustment technology of arbitrary embodiment of the invention by using.

Figure 23 is the diagram that the processing stream of being carried out by video signal preprocessor is shown.

Figure 24 is the diagram that the general introduction of handling according to the color adjustment of the first embodiment of the present invention is shown.

Figure 25 is the diagram that the general introduction of first color adjustment processing according to a second embodiment of the present invention is shown.

Figure 26 is the diagram that the general introduction of second color adjustment processing according to a second embodiment of the present invention is shown.

Figure 27 is the diagram that the general introduction that first color adjustment of a third embodiment in accordance with the invention handles is shown.

Figure 28 is the diagram that the general introduction that second color adjustment of a third embodiment in accordance with the invention handles is shown.

Figure 29 illustrates and is used for according to the equation of the color transformed processing of first embodiment and is the diagram of ios dhcp sample configuration IOS DHCP that illustrates based on this circuit.

Figure 30 illustrates and is used for according to the equation of the color transformed processing of second embodiment and is the diagram of ios dhcp sample configuration IOS DHCP that illustrates based on this circuit.

Figure 31 illustrates and is used for according to the equation of the color transformed processing of second embodiment and is the diagram of ios dhcp sample configuration IOS DHCP that illustrates based on this circuit.

Figure 32 is the diagram that the CbCr plane is shown.

Figure 33 is the diagram that the PbPr space is shown.

Figure 34 is the diagram that the IQ plane is shown.

Figure 35 illustrates u ^*v ^*The diagram on plane.

Figure 36 illustrates a ^*b ^*The diagram on plane.

Figure 37 illustrates a ^*b ^*The adjusting parameter of the corresponding color on the plane and the diagram of direction thereof.

Symbol description

The A portable terminal, B display unit, 1 functional unit, 2 antennas, 3,3a, 3b radio communication device, 5 cameras, 11 registers, 15 TV receivers, 17 memories, 21 external memory storage I/F, 25 video signal preprocessors, 27 displays, 31 controllers, 33 image corrector, 35 color modulator, 37 RGBYUV converters, 41 gamma corrector, 43 external connection terminals, 43,51 menus show, 53 color adjustment, 55 current set points, 61 electric wave towers, 63 1 fragments, 65 networks, 71 servers

Embodiment

In this manual, Y is a luminance signal; U is color difference signal (B-Y), and it is set in-1/2 to 1/2 the scope; And V is color difference signal (R-Y), and it is set in-1/2 to 1/2 the scope.In addition, RGBCMYe is respectively redness, green, blueness, cyan, magenta and yellow, they each all be set in 0 to 1 the scope.And, as the darkness grade of the color of giving a definition.Particularly, by square carrying out the phase adduction and find out the darkness grade that result's square root obtains aberration with each color component (aberration or chrominance levels).For example under the situation of yuv space, define the darkness grade of color by following equation.In this manual, the color with smaller value of finding out is lighter or more weak, and the color with higher value is more secretly or stronger.

The darkness grade=(U of color ²+ V ²) ^1/2

With reference to accompanying drawing, the color adjustment technology according to the embodiment of the invention will be described below.

(first embodiment)

Fig. 1 is the diagram of diagram according to first principle of the color adjustment technology of present embodiment, and is the diagram that the distribution of three primary colors R, G on the UV plane and B is shown.Described herein is the situation of RGB, but also can be applicable to CMYe like this technology type.In the UV plane, monochromatic color RGB almost distributes as shown in Figure 1.According to " the NHK TV tech textbook of publishing in 1989 (first volume) ", in the colour TV signal that uses in the NTSC method, with respect to the U axle, R has 103.5 ° angle, and G has 240.6 ° angle, and B has 347.6 ° angle.

The inventor points out, the close U axle of B in Fig. 1, and R is near the V axle.

Fig. 2 pays close attention to the illustrating along the diagram of the example of the color adjustment parameter of the direction of each color of this point.As can be seen from Figure 2, when the V of input was for example in negative scope, B had minor impact.Thereby, omit calculating to the B component to reduce amount of calculation.Similarly, omit when V is in positive scope, when U is in positive scope and the component that when U is in negative scope, has minor impact.Be set on the V direction of principal axis and B is set under the situation on the U direction of principal axis at R, can define the adjusting parameter A on the direction that is set at as shown in FIG. _R, A _GAnd A _BHere, suppose that G is received on U direction of principal axis and the V direction of principal axis conversion of equal extent and influences and define A _GA _GBe defined as having 225 ° angle with respect to the U axle.

When the V that imports is in positive scope, can pass through A _RThe V that multiply by input regulates V component (referring to equation 1).

[expression formula 1]

When V is the example that timing is regulated

V′＝A _R·V (1)

When the V that imports is in negative scope, when U is in positive scope and when U is in negative scope, also can carry out similar processing.On this basis, obtain equation 2.

[expression formula 2]

The example that is used for the transfer equation of RGB adjusting

$\left[\begin{array}{c}{U}^{\′}\\ V^{\′}\end{array}\right]=\left[\begin{array}{cc}\mathrm{\α}& 0\\ 0& \mathrm{\β}\end{array}\right]\left[\begin{array}{c}U\\ V\end{array}\right]---\left(2\right)$

$\mathrm{\&alpha;}=\left\{\begin{array}{cc}{A}_B& (U\&GreaterEqual;0)\\ A_G& (U<0)\end{array}\right.$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}{A}_R& (V\&GreaterEqual;0)\\ A_G& (V<0)\end{array}\right.$

U=V=0 only need be included in any.

By in the superincumbent equation value of the adjusting parameter of corresponding RGB being set for greater than 1 or less than 1, can irrespectively carry out the color transformed processing of the darkness/lightness that is used to regulate color with brightness, so that the UV value is close towards the color component that intensity will be increased or reduce.

The advantage of above-mentioned color adjustment is to have reduced amount of calculation by the calculating of omitting component with minor impact.

(second embodiment)

With compare according to the color adjustment technology of the first top embodiment, in technology, reduce except will be in the influence of the color the color that is increased on the intensity or reduces according to present embodiment.For example, when as shown in first embodiment, defining A _RThe time, R has the influence on the negative direction of U.Thereby, Given this, in order more correctly to define A _R, preferably reduce its influence on the positive direction of U.Therefore, when the V that imports is in positive scope, be fixed value 1 and A by the value of using U _RObtain weighted average, and the V with input on duty that will obtain like this.Thereby, so that the mode that gives minor impact to the color except specific color is regulated V component (equation 3).Here provide two equations as example.

[expression formula 3]

When V is the example that timing is regulated

Example 1V '=((S+U)+(T-U) A _R) V (3-1)

Satisfy S+T=1

Example 2V '=(P (U)+Q (U) A _R) V (3-2)

P and Q are the functions of U, and satisfy P (U)+Q (U)=1.

When the V that imports is in negative scope, when U is in positive scope and when U is in negative scope, also can carry out similar processing.Obtain equation 4 then.Here also provide two equations as example.

[expression formula 4]

The example that is used for the transfer equation of RGB adjusting

$\left[\begin{array}{c}{U}^{\&prime;}\\ V^{\&prime;}\end{array}\right]=\left[\begin{array}{cc}\mathrm{\&alpha;}& 0\\ 0& \mathrm{\&beta;}\end{array}\right]\left[\begin{array}{c}U\\ V\end{array}\right]---(4-1)$

Example 1 $\mathrm{\&alpha;}=\left\{\begin{array}{cc}(\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HPA00001148406900031.png,HPA00001148406900032.png"\; state="\{\{state\}\}">S</figure-callout>}1+V)+(T1-V)\&CenterDot;A_B& (U\&GreaterEqual;0)\\ (\mathrm{<figure-callout\; id="2"\; label="S"\; filenames="HPA00001148406900201.png"\; state="\{\{state\}\}">S</figure-callout>}2+V)+(T2-V)\&CenterDot;A_G& (U<0)\end{array}\right.---(4-2)$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}(\mathrm{<figure-callout\; id="3"\; label="S"\; filenames="HPA00001148406900101.png"\; state="\{\{state\}\}">S</figure-callout>}3+U)+(T3-U)\&CenterDot;A_R& (V\&GreaterEqual;0)\\ (\mathrm{<figure-callout\; id="4"\; label="S"\; filenames="HPA00001148406900211.png"\; state="\{\{state\}\}">S</figure-callout>}4+U)+(T4-U)\&CenterDot;A_G& (V<0)\end{array}\right.$

Satisfy S1+T1=1 respectively, S2+T2=1, S3+T3=1, and S4+T4=1.

Example 2 $\mathrm{\&alpha;}=\left\{\begin{array}{cc}P1\left(V\right)+Q1\left(V\right)\&CenterDot;A_B& (U\&GreaterEqual;0)\\ P2\left(V\right)+Q2\left(V\right)\&CenterDot;A_G& (U<0)\end{array}\right.---(4-3)$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}P3\left(U\right)+Q3\left(U\right)\&CenterDot;A_R& (V\&GreaterEqual;0)\\ P4\left(U\right)+Q4\left(U\right)\&CenterDot;A_G& (V<0)\end{array}\right.$

P and Q are the functions of U, and satisfy P1 (V)+Q1 (V)=1 respectively, P2 (U)+Q2 (U)=1,

P3(V)+Q3(V)＝1，P4(U)+Q4(U)＝1。

U=V=0 only need be included in any.

The value of regulating parameter setting about 1 for any RGB is so that increase its intensity, and therefore sets less than 1 value so that reduce its intensity.Thereby the value that can change UV reduces the influence to the color except specific color simultaneously.

(the 3rd embodiment)

With compare according to the color adjustment technology of the first top embodiment, be characterised in that according to the technology of present embodiment, reduce simultaneously except will be at the color of regulating RGBCMYe in the influence of the color the color that increases on the intensity or reduce.

In the UV plane, the color of each RGBCMYe almost is distributed on all directions as shown in Figure 3.

According to previously mentioned " the NHK TV tech textbook of publishing in 1989 (first volume) ", in the colour TV signal that in the NTSC method, uses, with respect to the U axle, R has 103.5 ° angle, G has 240.6 ° angle, B has 347.6 ° angle, and C has 283.6 ° angle, M and has 60.6 ° angle, and Ye has 167.6 ° angle.

The inventor points out that in Fig. 3, B and Ye are near the U axle, and R and C are near the V axle.

Here, consider the adjusting parameter of each color according to the direction of color.

For example, when the V that imports was in positive scope, Ye had minor impact.Thereby, from calculate, omit the Ye component to reduce amount of calculation.Similarly, omit when V is in negative scope, when U is in positive scope and the component that when U is in negative scope, has minor impact.R and C on the V direction of principal axis and B and Ye under the situation on the U direction of principal axis, can define adjusting parameter A as shown in Figure 4 _R, A _G, A _B, A _c, A _MAnd A _YeHere, supposing that G and M have an equal extent on U axle and V axle conversion influences defines A _GAnd A _MA _GBe defined as having 225 ° angle with respect to the U axle, and A _MBe defined as having 45 ° angle with respect to the U axle.

As among first embodiment, consider influence to other color.Particularly, when the V that imports is in positive scope, be A by the value of using U _RAnd A _MObtain weighted average, and the V with input on duty that will obtain like this.Thereby, can regulate V component (equation 5).Here provide two equations as example.

[expression formula 5]

When V is the example that timing is regulated

Example 1V '=((S+U) A _M+ (T-U) A _R) V (5-1)

Satisfy S+T=1

Example 2V '=(P (U) A _M+ Q (U) A _R) V (5-2)

P and Q are the functions of U, and satisfy P (U)+Q (U)=1.

In addition, when the V of input is in negative scope, when U is in positive scope and when U is in negative scope, carry out similarly processing.Obtain equation 6 then.Provide two examples as equation 6.

[expression formula 6]

The example that is used for the transfer equation of RGBCMYe adjusting

$\left[\begin{array}{c}{U}^{\&prime;}\\ V^{\&prime;}\end{array}\right]=\left[\begin{array}{cc}\mathrm{\&alpha;}& 0\\ 0& \mathrm{\&beta;}\end{array}\right]\left[\begin{array}{c}U\\ V\end{array}\right]---(6-1)$

Example 1 $\mathrm{\&alpha;}=\left\{\begin{array}{cc}(\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HPA00001148406900031.png,HPA00001148406900032.png"\; state="\{\{state\}\}">S</figure-callout>}1+V)\&CenterDot;A_M+(T1-V)\&CenterDot;A_B& (U\&GreaterEqual;0)\\ (\mathrm{<figure-callout\; id="2"\; label="S"\; filenames="HPA00001148406900201.png"\; state="\{\{state\}\}">S</figure-callout>}2+V)\&CenterDot;A_{\mathrm{Ye}}+(T2-V)\&CenterDot;A_G& (U<0)\end{array}\right.---(6-2)$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}(\mathrm{<figure-callout\; id="3"\; label="S"\; filenames="HPA00001148406900101.png"\; state="\{\{state\}\}">S</figure-callout>}3+U)\&CenterDot;A_M+(T3-U)\&CenterDot;A_R& (V\&GreaterEqual;0)\\ (\mathrm{<figure-callout\; id="4"\; label="S"\; filenames="HPA00001148406900211.png"\; state="\{\{state\}\}">S</figure-callout>}4+U)\&CenterDot;A_C+(T4-V)\&CenterDot;A_G& (V<0)\end{array}\right.$

Satisfy S1+T1=1 respectively, S2+T2=1, S3+T3=1, and S4+T4=1.

Example 2 $\mathrm{\&alpha;}=\left\{\begin{array}{cc}P1\left(V\right)\&CenterDot;A_M+Q1\left(V\right)\&CenterDot;A_B& (U\&GreaterEqual;0)\\ P2\left(V\right)\&CenterDot;A_{\mathrm{Ye}}+Q2\left(V\right)\&CenterDot;A_G& (U<0)\end{array}\right.---(6-3)$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}P3\left(U\right)\&CenterDot;A_M+Q3\left(U\right)\&CenterDot;A_R& (V\&GreaterEqual;0)\\ P4\left(U\right)\&CenterDot;A_C+Q4\left(U\right)\&CenterDot;A_G& (V<0)\end{array}\right.$

P and Q are the functions of U, and satisfy P1 (V)+Q1 (V)=1 respectively, P2 (U)+Q2 (U)=1, and P3 (V)+Q3 (V)=1,

P4(U)+Q4(U)＝1。

U=V=0 only need be included in any.

The value of regulating parameter setting about 1 for any RGBCMYe is so that increase its intensity, and therefore sets less than 1 value so that reduce its intensity.Thereby the value that can change UV reduces the influence to the color except specific color simultaneously

With reference to accompanying drawing, will provide the description that the technology of using first embodiment and the 3rd embodiment is carried out the versicolor first conversion example below.Fig. 5 illustrates when using color adjustment technology (using equation 2) according to first embodiment how to carry out when color transformed diagram at UV plane up conversion R, G and B.Provide A _R=A _G=1.5 as regulating parameter, this means that the first conversion example is wherein to emphasize red and green example.

The starting point P0 of arrow A R1 for example indicates the position before the conversion, and the position after the terminal point P1 of the arrow indication conversion.The amplitude of the axial length representation transformation of arrow.As shown in Figure 5, the color R that be emphasized is emphasized along the V axle, and another color G that will be emphasized is emphasized on the direction of V＜0 at U.

Next, with reference to Fig. 6, with the description that provides the example of the converter technique of using the 3rd top embodiment and the top first conversion example.Fig. 6 illustrates when using equation given below (7) to come conversion R, G and B and when regulating parameter to be set to A _R=A _G=1.825 o'clock how in the diagram of UV plane up conversion R, G and B.By being set at 1/2, all S1-S4 in the equation (6-2) and T1-T4 obtain equation (7).

[expression formula 7]

$\left[\begin{array}{c}{U}^{\&prime;}\\ V^{\&prime;}\end{array}\right]=\left[\begin{array}{cc}\mathrm{\&alpha;}& 0\\ 0& \mathrm{\&beta;}\end{array}\right]\left[\begin{array}{c}U\\ V\end{array}\right]---(7-1)$

$\mathrm{\&alpha;}=\left\{\begin{array}{cc}(1/2+V)\&CenterDot;A_M+(1/2-V)\&CenterDot;A_B& (U\&GreaterEqual;0)\\ (1/2+V)\&CenterDot;A_{\mathrm{Ye}}+(1/2-V)\&CenterDot;A_G& (U<0)\end{array}\right.---(7-2)$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}(1/2+U)\&CenterDot;A_M+(1/2-U)\&CenterDot;A_R& (V\&GreaterEqual;0)\\ (1/2+U)\&CenterDot;A_C+(1/2-U)\&CenterDot;A_G& (V<0)\end{array}\right.$

As by between AR2 among Fig. 6 and the AR1 among Fig. 5 more as can be seen, between Fig. 5 and Fig. 6, there are not great changes although regulate aspect R and the G how, very little to conversion influence away from the color (B) of the color that will be conditioned (color that is transformed) R and G.In other words, can reduce its conversion is the influence of the color of still not expecting of expectation.

Next, with reference to Fig. 7 to 9, the second color transformed example will be described.Fig. 7-9 is respectively the diagram that illustrates about the I/O characteristic of the data of monochromatic RGB, and described monochromatic RGB is transformed and is transformed back to the RGB data by the method for top the 3rd embodiment.Table 1 illustrates the equation that is used for this conversion.Table 1 is that the table of lising is shown down: the transformation equation (on the left side) that is used for RGB is transformed into YUV; Be used for coming the transformation equation (in the centre) of conversion UV data by the method for using top the 3rd embodiment; And the transformation equation (on the right) that is used for YUV is transformed into RGB.

[table 1]

$\mathrm{\&alpha;}=\left\{\begin{array}{cc}(1/2+V)\&CenterDot;A_M+(1/2-V)\&CenterDot;A_B& (U\&GreaterEqual;0)\\ (1/2+V)\&CenterDot;A_{\mathrm{Ye}}+(1/2-V)\&CenterDot;A_G& (U<0)\end{array}\right.$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}(1/2+U)\&CenterDot;A_M+(1/2-U)\&CenterDot;A_R& (V\&GreaterEqual;0)\\ (1/2+U)\&CenterDot;A_C+(1/2-U)\&CenterDot;A_G& (V<0)\end{array}\right.$

Note,, can change intensity by the value of changing into parameter setting although the intensity of RGB is different in size along with the parameter value shown in Fig. 7-9.Here, if, then can use for example following equation to carry out conversion: if adopt first embodiment then use equation (8) if be identical for the identical value of each parameter setting and by the variable quantity that the RGB conversion obtains; If adopt second embodiment then use equation (9); And if adopt the 3rd embodiment then use equation (10).

[expression formula 8]

The example that is used for the transfer equation of RGB adjusting

$\left[\begin{array}{c}{U}^{\&prime;}\\ V^{\&prime;}\end{array}\right]=\left[\begin{array}{cc}\mathrm{\&alpha;}& 0\\ 0& \mathrm{\&beta;}\end{array}\right]\left[\begin{array}{c}U\\ V\end{array}\right]---\left(8\right)$

$\mathrm{\&alpha;}=\left\{\begin{array}{cc}{W}_B\&CenterDot;A_B& (U\&GreaterEqual;0)\\ W_G\&CenterDot;A_G& (U<0)\end{array}\right.$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}{W}_R\&CenterDot;A_R& (V\&GreaterEqual;0)\\ W_G\&CenterDot;A_G& (V<0)\end{array}\right.$

Each W all represents weight

U=V=0 only need be included in any.

[expression formula 9]

The example that is used for the transfer equation of RGB adjusting

$\left[\begin{array}{c}{U}^{\&prime;}\\ V^{\&prime;}\end{array}\right]=\left[\begin{array}{cc}\mathrm{\&alpha;}& 0\\ 0& \mathrm{\&beta;}\end{array}\right]\left[\begin{array}{c}U\\ V\end{array}\right]---(9-1)$

Example 1 $\mathrm{\&alpha;}=\left\{\begin{array}{cc}(\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HPA00001148406900031.png,HPA00001148406900032.png"\; state="\{\{state\}\}">S</figure-callout>}1+V)+(T1-V)\&CenterDot;W_B\&CenterDot;A_B& (U\&GreaterEqual;0)\\ (\mathrm{<figure-callout\; id="2"\; label="S"\; filenames="HPA00001148406900201.png"\; state="\{\{state\}\}">S</figure-callout>}2+V)+(T2-V)\&CenterDot;W_G\&CenterDot;A_G& (U<0)\end{array}\right.---(9-2)$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}(\mathrm{<figure-callout\; id="3"\; label="S"\; filenames="HPA00001148406900101.png"\; state="\{\{state\}\}">S</figure-callout>}3+U)+(T3-U)\&CenterDot;W_R\&CenterDot;A_R& (V\&GreaterEqual;0)\\ (\mathrm{<figure-callout\; id="4"\; label="S"\; filenames="HPA00001148406900211.png"\; state="\{\{state\}\}">S</figure-callout>}4+U)+(T4-U)\&CenterDot;W_G\&CenterDot;A_G& (V<0)\end{array}\right.$

Satisfy S1+T1=1 respectively, S2+T2=1, S3+T3=1, and S4+T4=1.

Each W all represents weight

Example 2 $\mathrm{\&alpha;}=\left\{\begin{array}{cc}P1\left(V\right)+Q1\left(V\right)\&CenterDot;W_B\&CenterDot;A_B& (U\&GreaterEqual;0)\\ P2\left(V\right)+Q2\left(V\right)\&CenterDot;W_G\&CenterDot;A_G& (U<0)\end{array}\right.---(9-3)$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}P3\left(U\right)+Q3\left(U\right)\&CenterDot;W_R\&CenterDot;A_R& (V\&GreaterEqual;0)\\ P4\left(U\right)+Q4\left(U\right)\&CenterDot;W_G\&CenterDot;A_G& (V<0)\end{array}\right.$

P and Q are the functions of U, and satisfy P1 (V)+Q1 (V)=1 respectively, P2 (U)+Q2 (U)=1, and P3 (V)+Q3 (V)=1,

P4(U)+Q4(U)＝1。

Each W all represents weight

U=V=0 only need be included in any.

[expression formula 10]

The example that is used for the transfer equation of RGBCMYe adjusting

$\left[\begin{array}{c}{U}^{\&prime;}\\ V^{\&prime;}\end{array}\right]=\left[\begin{array}{cc}\mathrm{\&alpha;}& 0\\ 0& \mathrm{\&beta;}\end{array}\right]\left[\begin{array}{c}U\\ V\end{array}\right]---(10-1)$

Example 1 $\mathrm{\&alpha;}=\left\{\begin{array}{cc}(\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HPA00001148406900031.png,HPA00001148406900032.png"\; state="\{\{state\}\}">S</figure-callout>}1+V)\&CenterDot;W_M\&CenterDot;A_M+(T1-V)\&CenterDot;W_B\&CenterDot;A_B& (U\&GreaterEqual;0)\\ (\mathrm{<figure-callout\; id="2"\; label="S"\; filenames="HPA00001148406900201.png"\; state="\{\{state\}\}">S</figure-callout>}2+V)\&CenterDot;W_{\mathrm{Ye}}\&CenterDot;A_{\mathrm{Ye}}+(T2-V)\&CenterDot;W_G\&CenterDot;A_G& (U<0)\end{array}\right.---(10-2)$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}(\mathrm{<figure-callout\; id="3"\; label="S"\; filenames="HPA00001148406900101.png"\; state="\{\{state\}\}">S</figure-callout>}3+U)\&CenterDot;W_M\&CenterDot;A_M+(T3-U)\&CenterDot;W_R\&CenterDot;A_R& (V\&GreaterEqual;0)\\ (\mathrm{<figure-callout\; id="4"\; label="S"\; filenames="HPA00001148406900211.png"\; state="\{\{state\}\}">S</figure-callout>}4+U)\&CenterDot;W_C\&CenterDot;A_C+(T4-V)W_G\&CenterDot;A_G& (V<0)\end{array}\right.$

Satisfy S1+T1=1 respectively, S2+T2=1, S3+T3=1, and S4+T4=1.

Each W all represents weight

Example 2 $\mathrm{\&alpha;}=\left\{\begin{array}{cc}P1\left(V\right)\&CenterDot;W_M\&CenterDot;A_M+Q1\left(V\right)\&CenterDot;W_B\&CenterDot;A_B& (U\&GreaterEqual;0)\\ P2\left(V\right)\&CenterDot;W_{\mathrm{Ye}}\&CenterDot;A_{\mathrm{Ye}}+Q2\left(V\right)\&CenterDot;W_G\&CenterDot;A_G& (U<0)\end{array}\right.---(10-3)$

$\mathrm{\&beta;}=\left\{\begin{array}{cc}P3\left(U\right)\&CenterDot;W_M\&CenterDot;A_M+Q3\left(U\right)\&CenterDot;W_R\&CenterDot;A_R& (V\&GreaterEqual;0)\\ P4\left(U\right)\&CenterDot;W_C\&CenterDot;A_C+Q4\left(U\right)\&CenterDot;W_G\&CenterDot;A_G& (V<0)\end{array}\right.$

P and Q are the functions of U, and satisfy P1 (V)+Q1 (V)=1 respectively, P2 (U)+Q2 (U)=1, and P3 (V)+Q3 (V)=1,

P4(U)+Q4(U)＝1。

Each W all represents weight

U=V=0 only need be included in any.

Fig. 7 illustrates example as follows, in this example, and at A _R=1.5 and G and B be by R is changed to 1 value that obtains U and V from 0 under 0 the situation; Use the UV value that obtains like this to carry out the UV data conversion then; And use thus obtained U ' and V ' to calculate R ', G ' and B '.In addition, also in a similar fashion at A _RCalculate R ', G ' and B ' under=0.5 the situation.Similarly, Fig. 8 illustrates example as follows, in this example, is under 0 the situation by G is changed to 1 value that obtains U and V from 0 R and B both; Use the UV value that obtains like this to carry out the UV data conversion then; And use thus obtained U ' and V ' to calculate R ', G ' and B '.In addition, also in a similar fashion at A _GCalculate R ', G ' and B ' under=0.5 the situation.Fig. 9 illustrates example as follows, in this example, is under 0 the situation by B is changed to 1 value that obtains U and V from 0 R and G both; Use the UV value that obtains like this to carry out the UV data conversion then; And use thus obtained U ' and V ' to calculate R ', G ' and B '.In addition, also in a similar fashion at A _BCalculate R ', G ' and B ' under=0.5 the situation.Shown in Fig. 7-9, among the color RGB each, can use and regulate parameter is that color adjustment is carried out on the basis with the monochrome, and can carry out the processing of the darkness/lightness grade that is used for the conversion color according to present embodiment.

Here, if use is overflowed according to U ' and V ' after the conversion of the converter technique of the 3rd embodiment, then U ' and V ' are approximately-1/2 or 1/2.And RGB afterwards overflows if the RGB data are got back in conversion, and then RGB is approximately 1.Carrying out so approximate reason is: the accompanying drawing of this specification is that value that the value at U and V is normalized to-1/2 to 1/2 scope and RGB is normalized under the situation of 0 to 1 scope and is illustrated.Yet,, obtain different slightly I/O characteristics with respect to Fig. 7-9 if do not carry out approximately.Figure 10 that describes below-17 also is like this.

Next, will for example example of performed processing when wanting intensity polyenergetic R be described.Equation shown in the use table 1 is used for the conversion here.

Figure 10 be illustrate G and R each initial data and conversion after the diagram of relation between the data, wherein B is 0.Here, at A _R=1.5, G be 1/4 and B be under 0 the situation by R is changed to 1 value that obtains U and V from 0, use the UV value that obtains like this to carry out the UV data conversion then, and use thus obtained U ' and V ' to calculate R ', G ' and B '.When R when in about 1/4 scope, changing from 0, R ' and G ' do not show great changes.When R about 1/4 and above scope in the time, R ' and G ' are increased respectively on intensity and are reduced, and need only R and are changed to 1 or littler.Thereby as can be seen, as expected, R is increased on intensity.Note, G near 1 situation under the reason that changes of value be: overflowing of V ' value is similar to-1/2 to 1/2 the scope that arrives after the conversion.

Figure 11 also be illustrate G and R each initial data and conversion after the diagram of relation between the data.Here, at A _R=0.5, G be 1/4 and B be under 0 the situation by R is changed to 1 value that obtains U and V from 0, use the UV value that obtains like this to carry out the UV data conversion then, and use thus obtained U ' and V ' to calculate R ', G ' and B '.When R when in about 1/4 scope, changing from 0, R ' and G ' do not show great changes.When changing in about scope of 1/4 to 1, G ' increases on intensity R ' reducing on the intensity at R.Thereby as can be seen, such R as expected reduces on intensity.

As described, even when polyenergetic R will be increased or reduce on intensity, as expected like that also can come conversion to want the color of conversion according to the converter technique of the 3rd embodiment by using.

Next,, following such example is described with reference to Figure 12 and 13, in this example, for example polyenergetic R on intensity, increase or reduce and B non-vanishing.As in the above example, the equation shown in the use table 1 is used for the conversion process here.

Figure 12 is the diagram that example as follows is shown, in this example, and at A _R=1.5, G be 1/2 and B be by R is changed to 1 value that obtains U and V from 0 under 1/4 the situation; Use the UV value that obtains like this to carry out the UV data conversion then; And use thus obtained U ' and V ' to calculate R ', G ' and B '.As shown in figure 12, when R is in from 0 to 1/2 scope the time, neither one shows great changes among R ', G ' and the B '.When R changed in from 1/2 to 1 scope, G ' reduced on intensity R ' increasing on the intensity.Like this, as can be seen, such R as expected increases on intensity and is transformed.Note,, in the I/O characteristic, see almost not changing as for B.

Figure 13 is the diagram that example as follows is shown, in this example, and at A _R=0.5, G be 1/2 and B be by R is changed to 1 value that obtains U and V from 0 under 1/4 the situation; Use the UV value that obtains like this to carry out the UV data conversion then; And use thus obtained U ' and V ' to calculate R ', G ' and B '.When R changed in from 0 to 1/4 scope, neither one showed great changes among R ', G ' and the B '.When R from 1/4 to 1 changed, G ' increased on intensity R ' reducing on the intensity.Like this, as can be seen, such R as expected reduces on intensity.Note,, in the I/O characteristic, see almost not changing as for B.

Next, the example that polyenergetic G wherein will increase or reduce is described on intensity.In Figure 14, at A _G=1.5, B be 1/2 and R be by G is changed to 1 value that obtains U and V from 0 under 1/4 the situation; Use the UV value that obtains like this to carry out the UV data conversion then; And use thus obtained U ' and V ' to calculate R ', G ' and B '.Use the transformation equation in the table 1.As shown in figure 14, R ' does not show great changes when R changes in about 1/4 scope from 0, and reduces in intensity at R R ' when changing in about scope of 1/4 to 1.B ' does not show great changes when B changes in from 0 to 1/2 scope, and B ' reduces in intensity when B changes in from 1/2 to 1 scope.G ' does not show great changes at G when changing in about 1/4 scope from 0, and increases in intensity at G G ' in about scope of 1/4 to 1 time.Thereby as can be seen, such G as expected increases on intensity.

On the other hand, Figure 15 is the diagram that the result who obtains as follows is shown: at A _G=0.5, B be 1/2 and R be by G is changed to 1 value that obtains U and V from 0 under 1/4 the situation; Use the UV value that obtains like this to carry out the UV data conversion then; And use the U ' and the V ' that obtain to calculate R ', G ' and B '.As shown in figure 15, G ' is not showing great changes at G in about 1/4 scope the time from 0 on scope, and G ' reduces in intensity in about scope of 1/4 to 1 time.R ' changes at R at 1/4 o'clock from 0 and does not show great changes, and R ' increases in intensity when R is in from 1/4 to 1 scope.B ' does not show great changes at B when changing in about 1/2 scope from 0, and B ' increases in intensity in from 1/2 to 1 scope the time.Thereby as can be seen, such G as expected reduces on intensity.

Next, with reference to Figure 16 and 17, the example that polyenergetic B wherein will increase or reduce is described on intensity.Use the transformation equation shown in the table 1.

Figure 16 is the diagram that following characteristic is shown: at A _B=1.5, R be 1/2 and G be by B is changed to 1 value that obtains U and V from 0 under 1/4 the situation; Use the UV value that obtains like this to carry out the UV data conversion then; And use the U ' and the V ' that obtain to calculate R ', G ' and B '.B ' does not show great changes at B for from 0 to 1/4 o'clock on scope, and B ' increases in intensity in from 1/4 to 1 scope the time.G ', and reduces in intensity at G G ' in about scope of 1/4 to 1 time for not showing great changes at from 0 to 1/4 o'clock at G.R ' does not show great changes when R changes in from 0 to 1 scope.Thereby as can be seen, such G as expected increases on intensity.

Figure 17 is the diagram that following characteristic is shown: at A _B=0.5, R be 1/2 and G be by B is changed to 1 value that obtains U and V from 0 under 1/4 the situation; Use the UV value that obtains like this to carry out the UV data conversion then; And use thus obtained U ' and V ' to calculate R ', G ' and B '.B ' changes at B at 1/4 o'clock from 0 and does not show great changes, reduces in intensity and change to 1 o'clock B ' at B from 1/4.G ' changes at G at 1/4 o'clock from 0 and does not show great changes, increases in intensity and change to 1 o'clock G ' at G from 1/4.R ' changes at R at 1 o'clock from 0 and does not show great changes.Thereby as can be seen, such B as expected reduces on intensity.

As can be seen from the above, under the situation of RGB, the intensity that can regulate each color according to the value of setting for the color adjustment parameter of the color of wanting conversion.

To provide the description of example of above-mentioned technology that use is used to regulate the colouring intensity (darkness/lightness grade) of display unit and portable terminal below.Figure 18 illustrates the diagram of use according to the ios dhcp sample configuration IOS DHCP of the display unit of any color adjustment technology of the embodiment of the invention.As shown in figure 18, have external connection terminal 43, video signal preprocessor 25 and display 27 according to the display unit B of present embodiment, can the input and output data through external connection terminal 43.Video signal preprocessor 25 comprises color modulator 35 and gamma (gamma) adjuster 41.Color modulator 35 is carried out according to any the color adjustment among the top embodiment.Display unit among Figure 18 may be implemented as any of every kind of various devices that all have a display, and can for example be applied to LCD, plasma display, OLED (Organic Light Emitting Diode) EL display or the like.

And, allow the easy adjusting of colouring intensity and reduce the load of color transformed processing according to the color adjustment technology of the embodiment of the invention, therefore be more suitable for being used to comprise the portable terminal of mobile phone.Figure 19 illustrates the diagram of use according to the ios dhcp sample configuration IOS DHCP of the portable terminal of any color adjustment technology of the embodiment of the invention.As shown in figure 19, the portable terminal A according to present embodiment has functional unit 1, radio communication device 3, camera 5, the external connection terminal 43 that can carry out the data input and output, register 11, TV receiver 15, memory 17, external memory storage I/F 21, video signal preprocessor 25, display 27 and is used for the whole controller of controlling (CPU) 31.Video signal preprocessor 25 comprises image corrector 33, color modulator 35, RGBYUV converter 37 and gamma corrector 41.Color modulator 35 is carried out according to any the color adjustment among the top embodiment.

Figure 20 is the diagram of ios dhcp sample configuration IOS DHCP that the outward appearance of portable terminal is shown.As shown in figure 20, the menu that is used for color adjustment 53 shows that 51 are displayed on display 27.Show the item and the current set point 55 that are used for color adjustment 53, and the set point of red (R) is current is just paid close attention to.Here, portable terminal can be configured to make and can use functional unit 1 to change to be presented at the set point that is used for color adjustment 53 55 (accompanying drawing illustrates how to regulate redness) on the display 27.Alternatively, portable terminal can be configured to can be before shipment in order to regulate set point 55 by terminal manufacturer side such as the purpose of eliminating individual difference.

Figure 21 is first diagram of using the processing example in the sight that illustrates that the colour of portable terminal shows.As shown in figure 21, as incoming video signal, video signal preprocessor 25 receives with input: the video or the rest image that obtain from radio communication device 3a, camera 5, external memory storage I/F21 or external connection terminal 43, the perhaps video based on fragment broadcasting that obtains from TV receiver 15.Then, color modulator 35 is carried out color adjustment.For this color adjustment, to set by user's operation from functional unit 1, controller 31 receives this operation, and thereby can change the current value that is set in the register 11.Amended like this parameter is used for color adjustment by color modulator 35.Based on by the vision signal that color adjustment obtained, outputting video signal is presented on the display 27.The image of the communication counterpart in the visual telephone, camera images data, the moving image that obtains from external memory storage I/F 21, fragment broadcasting or the like can be transformed into the video of the preference that satisfies each user.For example maybe should be used for regulating as shown in figure 20 parameter, make this become possibility by type according to video.In addition, portable terminal can be configured to make that outputting video signal can be stored in the memory 17.

Particularly, memory 17 is the media such as removable card type memory or built-in nonvolatile memory, and can be configured to preserve the video that (record) processing by color modulator obtains.In addition, memory 17 can be configured to and can preserve video with the color adjustment parameter correlation connection ground that is used to handle.

The processing that is used to reset the color adjustment parameter is omitted in this related permission when watching the data of being preserved once more on display 27.And portable terminal can be configured to make outputting video signal to be sent out and to receive through external connection terminal 43.Thereby video can be sent straight to another device, and this allows for example to pass through the connection of big display and video is presented on the large-screen.And portable terminal can be configured to make and can be sent out and receive through external connection terminal 43 or radio communication device 3b by the vision signal that color adjustment obtained and the set point of color adjustment parameter.For example, if portable terminal has visual telephone function, then portable terminal can be configured to allowing color modulator 35 regulate the color of the captured user images of cameras during the video phone call and sending video after regulating like this then and the set point of color adjustment parameter.The preservation of connection ground can be relative to each other video and each the color adjustment parameter that is used for this processing.And video that processing obtains and above-mentioned association by color modulator can be stored among the 17a of dedicated memory.Can be only table that should association etc. be stored among the 17a of memory block.

Next, will provide come to carry out the description of the example of color adjustment according to the color adjustment technology of arbitrary embodiment of the invention by use for a plurality of portable terminals.Figure 22 is the diagram that the ios dhcp sample configuration IOS DHCP of such system is shown.System X shown in Figure 22 utilizes by the used portable terminal A1 of user A with by the used portable terminal A2 of user B.In the portable terminal A1 used, for example receive fragment broadcasting 63 through electric wave tower 61 by user A.Then, user A carries out color adjustment when watching video, and uploads set point suitable or that satisfy preference (color adjustment parameter) (67).The set point of uploading is like this downloaded (73) by the used portable terminal A2 of user B through network 65.This makes the user of portable terminal A2 can use the set point of download directly to carry out color adjustment or set point is carried out further color adjustment with for referencial use.This is provided as the advantage that some video is saved the trouble of color adjustment.Carry one in passing, through network the example that is directly sent to user B by the used set point of user A is comprised such situation:, perhaps be that a fragment is watched the preferred set point of transmission user A such as sending parameter in conjunction with the user images of transmission of video call.Alternatively, a fragment content itself can be assigned with described set point (in header portion or the like).And this system can be configured to make and can download set point through server 71.This feasible set point that the dynamic image content coupling that provides with server 71 can be provided.

Figure 23 is the diagram that the processing stream of being carried out by video signal preprocessor is shown.As shown in figure 23, incoming video signal advances to RGBYUV converter 37 and is transformed there.Then, this signal stands by the image rectification of image corrector 33 and the color adjustment according to arbitrary embodiment of the invention of passing through color modulator 35.Then, this signal stands color transformed by RGBYUV converter 37, stands the Gamma correction by gamma corrector 41 then.Obtain outputting video signal thus.Below will be at implementing this processing through software processes and providing description more specifically to color transformed processing through two kinds of situations that hardware handles is implemented this processing.Notice that this processing can partly be passed through hardware handles and partly implement through software processes.

Figure 24 is the diagram that the general introduction of handling according to the color adjustment of the first embodiment of the present invention is shown.Figure 24 (A) illustrates the transformation equation that is used for according to the first color transformed processing of first embodiment, and Figure 24 (B) illustrates the flow chart that first color adjustment is handled stream.At first, along with the beginning of handling (step S1: beginning), in step S2, determine that whether U is 0 or bigger (positive or 0).If then this processing proceeds to step S3 to use A _BReplace the α in the equation among Figure 24 (A).On the other hand, if not, then this processing proceeds to step S4 to use A _Gα in the equation above replacing.Under any situation in these situations, this processing proceeds to step S5 to obtain U ' by use transformation equation U '=α U from step S3 and S4.Then, in step S6, determine that whether V is 0 or bigger (positive or 0).If then this processing proceeds to step S7 to use A _RReplace β.On the other hand, if not, then this processing proceeds to step S8 to use A _GReplace β.Under any situation in these situations, this processing proceeds to step S9 to obtain V ' by use V '=β V.Therefore conversion process finishes (step S10).

Figure 25 is the diagram that the general introduction of first color adjustment processing according to a second embodiment of the present invention is shown.Figure 25 (A) illustrates the transformation equation that is used for according to the color transformed processing of second embodiment, and Figure 25 (B) illustrates the flow chart that second color adjustment is handled stream.At first, along with the beginning of handling (step S11: beginning), in step S12, determine that whether U is 0 or bigger (positive or 0).If then this processing proceeds to step S13 to pass through to use (S1+V)+(T1-V) A _BCalculate α as the α in the equation that is included among Figure 25 (A).On the other hand, if not, then this processing proceeds to step S14 with by using the A of α=(S2+V)+(T2-V) _GCalculate α.

Under arbitrary situation in these situations, this processing proceeds to step S15 to obtain U ' by use transformation equation U '=α U from step S13 and S14.Then, in step S16, determine that whether V is 0 or bigger (positive or 0).If then this processing proceeds to step S17 to find out the A of β=(S3+U)+(T3-U) _ROn the other hand, if not, then this processing proceeds to step S18 to find out the A of β=(S4+U)+(T4-U) _GUnder arbitrary situation in these situations, this processing proceeds to step S 19 to obtain V ' by use V '=β V.Therefore conversion process finishes (step S20).

Figure 26 is the diagram that the general introduction of second color adjustment processing according to a second embodiment of the present invention is shown.Figure 26 (A) illustrates the transformation equation that is used for according to the second color transformed processing of second embodiment, and Figure 26 (B) illustrates the flow chart that second color adjustment is handled stream.At first, along with the beginning of handling (step S21: beginning), in step S22, determine that whether U is 0 or bigger (positive or 0).If then this processing proceeds to step S23 to pass through to use P1 (V)+Q1 (V) A _BCalculate α as the α in the equation that is included among Figure 26 (A).On the other hand, if not, then this processing proceeds to step S24 to pass through to use α=P2 (V)+Q2 (V) A _GCalculate α.

Under arbitrary situation in these situations, this processing proceeds to step S25 to obtain U ' by use transformation equation U '=α U from step S23 and S24.Then, in step S26, determine that whether V is 0 or bigger (positive or 0).If then this processing proceeds to step S27 to find out β=P3 (U)+Q3 (U) A _ROn the other hand, if not, then this processing proceeds to step S28 with substitution β=P3 (U)+Q3 (U) A _GUnder arbitrary situation in these situations, this processing proceeds to step S29 to obtain V ' by use V '=β V.Therefore conversion process finishes (step S30).

Figure 27 is the diagram that the general introduction that first color adjustment of a third embodiment in accordance with the invention handles is shown.Figure 27 (A) illustrates the transformation equation that is used for according to the first color transformed processing of the 3rd embodiment, and Figure 27 (B) illustrates the flow chart that this color adjustment is handled stream.At first, along with the beginning of handling (step S31: beginning), in step S32, determine that whether U is 0 or bigger (positive or 0).If then this processing proceeds to step S33 to be included in the A of α in the equation among Figure 27 (A)=(S1+V) by use _M+ (T1-V) A _BCalculate α.On the other hand, if not, then this processing proceeds to step S34 with by using the A of α=(S2+V) _Ye+ (T2-V) A _GCalculate α.

Under arbitrary situation in these situations, this processing proceeds to step S35 to obtain U ' by use transformation equation U '=α U from step S33 and S34.Then, in step S36, determine that whether V is 0 or bigger (positive or 0).If then this processing proceeds to step S37 to find out the A of β=(S3+U) _M+ (T3-U) A _ROn the other hand, if not, then this processing proceeds to step S38 with substitution (S4+U) A _C+ (T4-U) A _GUnder arbitrary situation in these situations, this processing proceeds to step S39 to obtain V ' by use V '=β V.Therefore conversion process finishes (step S40).

Figure 28 is the diagram that the general introduction that second color adjustment of a third embodiment in accordance with the invention handles is shown.Figure 28 (A) illustrates the transformation equation that is used for according to the second color transformed processing of the 3rd embodiment, and Figure 28 (B) illustrates the flow chart that this color adjustment is handled stream.At first, along with the beginning of handling (step S41: beginning), in step S42, determine that whether U is 0 or bigger (positive or 0).If then this processing proceeds to step S43 to be included in α=P1 (V) A in the equation among Figure 28 (A) by use _M+ Q1 (V) A _BCalculate α.On the other hand, if not, then this processing proceeds to step S44 to pass through to use α=P2 (V) A _Ye+ Q2 (V) A _GCalculate α.

Under arbitrary situation in these situations, this processing proceeds to step S45 to obtain U ' by use transformation equation U '=α U from step S43 and S44.Then, in step S46, determine that whether V is 0 or bigger (positive or 0).If then this processing proceeds to step S47 to find out β=P3 (U) A _M+ Q3 (U) A _ROn the other hand, if not, then this processing proceeds to step S48 to find out β=P4 (U) A _C+ Q4 (U) A _GUnder arbitrary situation in these situations, this processing proceeds to step S49 to obtain V ' by use V '=β V.Therefore conversion process finishes (step S50).

Although the treatment step of description is at first handled U ' and is handled V ' then in the flow chart of Figure 24-28 (each illustrates color adjustment and handles stream), can with V ' at first then the order of U ' carry out this processing.

With reference to accompanying drawing, will provide being used for implementing the description of example of the circuit of color transformed processing through hardware handles.Figure 29 illustrates the equation (Figure 29 (A)) that is used for according to the color transformed processing of first embodiment and is the diagram of ios dhcp sample configuration IOS DHCP that illustrates based on this circuit.Figure 29 is corresponding to the Figure 24 that adopts software processes.Shown in Figure 29 (B), the circuit 101 that is used for using the equation of Figure 29 (A) to carry out conversion has: register 103 is used to store A _B, A _GAnd A _RValue; First selector 105 is used for just being or bearing at A according to the UV value _BAnd A _GBetween select; Second selector 107 is used for just being or bearing at A according to the UV value _GAnd A _RBetween select; First multiplier 111; And second multiplier 113.U ' be by multiplier 111 by the product value that U signal obtains is multiply by in the output of first selector 105, and V ' is by the product value that V signal obtains is multiply by in the output of second selector 107 by multiplier 113.Can carry out color adjustment with such easy configuration.

Figure 30 illustrates the equation (Figure 30 (A)) that is used for according to the color transformed processing of second embodiment and is the diagram of ios dhcp sample configuration IOS DHCP that illustrates based on this circuit.Figure 30 is corresponding to the Figure 25 (wherein S1 is set to 1/2 to S4 and T1 to T4) that adopts software processes.Shown in Figure 30 (B), color adjustment circuit T121 comprises register 123, selector 125 and 127, multiplier, subtracter and adder.

Figure 31 illustrates the equation (Figure 31 (A)) that is used for according to the color transformed processing of the 3rd embodiment and is the diagram of ios dhcp sample configuration IOS DHCP that illustrates based on this circuit.Figure 31 is corresponding to the Figure 27 (wherein S1 is set to 1/2 to S4 and T1 to T4) that adopts software processes.Shown in Figure 31 (B), color adjustment circuit T131 comprises register 133, selector 135 and 137, multiplier, subtracter and adder.

As described, can carry out color adjustment with hardware configuration according to the embodiment of the invention.

Describe as top, utilize color adjustment technology, can carry out color adjustment with simple computing according to the embodiment of the invention.

Color darkness/lightness that each embodiment that provides above shows in the YUV color space is regulated.Yet, note, can be in arbitrary other color space draw such as the color of aberration or chrominance levels on by plane and carry out similar conversion for each color definition parameter and direction then in this space.

Figure 32-35 illustrates the example that can draw the plane of aberration or colourity thereon respectively: CbCr plane, PbPr plane, IQ plane and u ^*v ^*The plane.For example at L ^*a ^*b ^*In the space, the color of RGB can be plotted in a ^*b ^*On the plane, almost as shown in figure 36.Thereby, by the definition direction of adjusting parameter as shown in figure 37, can be with the darkness grade of regulating color with the similar mode of mode described above.

Industrial applicability

The present invention can be applicable to color adjustment circuit and uses video device of color adjustment circuit etc.

Claims (28)

1. color adjustment device that is used to regulate the color on definition and the Color plane that do not comprise brightness by two mutually orthogonal axles (being called X-axis and Y-axis hereinafter), this color adjustment device is characterised in that and comprises color modulator, this color modulator only on one of direction of X-axis and Y-axis among the color RGBCMYe any carries out color adjustment at least.

2. color adjustment device according to claim 1, it is characterized in that, this color modulator is designated as the color definition color adjustment parameter that has intensity on the specific direction on the XY plane for each, and regulates by using described color adjustment parameter to carry out colouring intensity.

3. color adjustment device according to claim 2 is characterized in that, this color modulator is come the data of conversion X and Y by using described color adjustment parameter.

4. according to each described color adjustment device in the claim 1 to 3, it is characterized in that when comprising a plurality of color, this color modulator is carried out color adjustment by getting rid of the color component that has minor impact on X-axis and Y-axis.

5. according to each described color adjustment device in the claim 2 to 4, it is characterized in that, in the described color adjustment parameter any is defined as parallel with any direction at least of X-axis and Y-axis at least.

6. according to each described color adjustment device in the claim 2 to 4, it is characterized in that, in the described color adjustment parameter any is defined as having any the angle in respect to the direction of X-axis 45 °, 135 °, 225 ° and 315 ° at least.

7. according to each described color adjustment device in the claim 2 to 6, it is characterized in that, when when using described color adjustment parameter to come the data of conversion X and Y, described color modulator just is respectively according to the data of X and Y or bears and switch described color adjustment parameter.

8. according to each described color adjustment device in the claim 1 to 7, it is characterized in that, the versicolor direction that is used for the color adjustment on the XY plane be along X-axis and Y-axis at least any.

9. according to each described color adjustment device in the claim 1 to 8, it is characterized in that, described color modulator according to the input and output characteristic so that in the big more then data after color transformed of the input value of color the big more mode of rate of change of its output valve regulate conversion at color.

10. according to each described color adjustment device in the claim 1 to 9, it is characterized in that, in the data after color transformed, described color modulator according to the input and output characteristic regulate in the following manner conversion at color:

Make increase conversion at the intensity of color the time reduce or do not change except conversion at color the intensity of output valve of color; And

Make reduce conversion at the intensity of color the time increase or do not change except conversion at color the intensity of output valve of color.

11. according to each described color adjustment device in the claim 1 to 10, it is characterized in that, when for change conversion at color and when setting described color adjustment parameter, described color modulator so that on the XY plane except conversion at color color variable quantity less than conversion at the mode of variable quantity of color regulate this color.

12. according to each described color adjustment device in the claim 1 to 11, it is characterized in that, when being the identical value of each color adjustment parameter setting of each color, described color modulator is so that the mode that the variable quantity of the output valve after color transformed is equal to each other is carried out adjusting.

13. according to each described color adjustment device in the claim 2 to 12, it is characterized in that, comprising:

Register, it is stored in described color adjustment parameter wherein;

Selector, it is selected between described color adjustment parameter; And

Multiplier, it will be multiply by the input value of X and Y by the selected color adjustment parameter of described selector.

14. a display unit, its characteristic is, comprising:

According to each described color adjustment device in the claim 2 to 13; And

Display unit, this display unit is characterised in that:

Stand conversion process by the shown image of described display unit by described color adjustment device.

15. a portable terminal, its characteristic is, comprises video signal preprocessor, and this video signal preprocessor comprises according to each described color adjustment device in the claim 2 to 13.

16. portable terminal according to claim 15, its characteristic are, comprise that preservation is by the video signal preprocessor process memory of data that conversion obtained.

17. portable terminal according to claim 16, its characteristic are, preserve in memory by the set point of color adjustment device through the color adjustment parameter of the data that conversion obtained and the connection that is relative to each other.

18. according to each described portable terminal in the claim 15 to 17, its characteristic is, comprises can sending or receiving by the radio communication device of color adjustment device through the data that conversion obtained.

19. according to each described portable terminal in the claim 15 to 18, its characteristic is that this radio communication device sends or receive described color adjustment parameter.

20. according to each described portable terminal in the claim 15 to 19, its characteristic is, comprises can sending and/or receiving by the external connection terminal of color adjustment device through the data that conversion obtained.

21. according to each described portable terminal in the claim 15 to 20, its characteristic is that this external connection terminal sends and/or receive described color adjustment parameter.

22. according to each described portable terminal in the claim 15 to 21, its characteristic is, comprises via the changeable user interface of the set point of its described color adjustment parameter.

23. a system allows to be sent out and/or to receive between a plurality of portable terminals by the set point of color adjustment device through the color adjustment parameter that conversion obtained by it.

24. a system allows by the color adjustment device through data that conversion obtained a plurality of according to being sent out and/or receiving between each described portable terminal in the claim 15 to 23 by it.

25. according to each described portable terminal in the claim 15 to 21, its characteristic is:

The set point of described color adjustment parameter is assigned to content, and

Carry out color adjustment based on described set point in conjunction with reproduction of content.

26. color conditioning method that is used for carrying out on definition and the Color plane that do not comprise brightness color adjustment at mutually orthogonal by two axle (being called X-axis and Y-axis hereinafter), this color conditioning method be characterised in that only comprise on one of direction of X-axis and Y-axis among the color RGBCMYe any carries out the step of color adjustment at least, this step comprises:

For being designated as the color definition color adjustment parameter that on the specific direction on the XY plane, has intensity; And

Regulate by using described adjusting parameter to carry out colouring intensity.

27. program that makes the computer execution according to the step of claim 26.

28. a computer-readable recording medium records the program according to claim 27 therein.

Images